A passenger jet flying at hypersonic speeds could revolutionize air travel by cutting down a transatlantic flight from New York to London from seven hours to two.

Er, theoretically, that is.

Boeing is still trying to figure out how any of this will all actually happen, but the aircraft manufacturing company does have its eye on a launch date. If the company has its way, it’ll get these hypersonic jets in the air in about 20 to 30 years from now — which, coincidentally, is about as long as every layover in Chicago O’Hare feels.